Wasnt this +1 durability per taunt? That would have been good (posibly OP, but warrior already has great weapons, so having this a taunt alternative would have been great. But +1 as the highest bonus is pritty weak compared to warriors other weapons

No, because fiery war axe has the benefit of being able to take care of most early threats on turn two. With this you have to wait a turn later, which gives them more chance to build a board. Plus you need a taunt in play, which means you likely need even more time to use this at full power.